Gas burner



c'. Hui-"F GAS BURNER June 24, 1930.

Filed Jan. 9. 192e.

hmlllllll Patented elune 24, i930-A uNrrEo srA'TssfrA-Tmr .1

mman o. Burr, OF CHICAGO, ILLINOIS, AssIGNon To UnIvmasAI. OIL eRoDIre' PANY, or CHICAGO, Immers A CORPORATION vOF SOUTH-DAKOTA GAS BURNER applica/nim 'med January 9, 1926.. Aserial No. $0,284.v

My invention relates to a. new and improved gas burner ofthe induced draft type and contemplates the Vprovision of a.

gas burner `that will givevv an evenand con- '5 tinuous supply of h eat and a burner-Which will effectively andefiiciently atomize. the fuel and which Will be 'found economic in fuel. consumption. More specifically 4the invention contemplates the provision of a gas burner adapted for use in furnaces wherein' exceedingly high temperatures are` employed and to'provide a burner of simple construction ywhich can be economically manufactured and' easily installed.

' Inthe drawings Fig.. 1 is a longitudinal lsectional view of a burner l constructed in accordance withl my invention and Fig. 2 isv a cross sectional view'of the burner taken on the line 2-2 of Fig. 1. v

- The. burner comprises an elongated'mixing tube l .carrying at oneend a gas-rcceving chamber 2 which chamber'is effec-v tivel supp y line` 4. controlled b municates -with the cham e122. vA steam line 6 controlled byV valve 7. extends intoa" central bore in the lend plug 3' and delivers steam to the central steam injecting pipe 8 having one end mounted in the central bore of the end plug 3 and carrying near its discharge end an annular partition member 9. This partition niember 9 is adapted to separate the operative portion of the mixing Atube 1v from the gas receiving chamber 2. The partition member 9 is pro'vided' at spaced intervals about its periphery withV the independent series of saw tooth serrations 10, the function of whiOhwill-be later discussed. v j 4 The mixing tube 1 is provided slightlyy in advance of the artition member 9 and in alignment with t e discharge end of the gas injecting pipe 8 Withja plurality of annularly spaced air inlet openings 11. Carried by the mixingftube ll is a slidable'collar 12 for regulating the `admission' of air through the openings 11. `The openings 11 are in 'alignment with the 'serrated sections of the periphery-of thepartition member 9. 1

Describing now the operation of t're stream .of gasv and both the gasandjair are closed' by theend plug 3. A .gasl a valve 5 com-Kl burner', gasis supplied lthrough the .gas-iii-lr y ylet lline ito tliegas chamberQ. f Steam is' injected under pressure into ythe.{-.b`,ur1 1er.. through the injectionjpipe'8;vvhileair is admitted to the mixing'tube through the open 5 5/Y 'ings 11. The arrangement ofthe serrated sections in the partition member 9 causes the incoming gas'from' chamber' 2 tofbe'admitted --to the mixingy tube in a-.substantially thin? annu-lar. stream. The fact that vthe openvL60 ings'- 11 arein alignment with the-serrated *sectionsV of .the partition member 9 causes 'the' air Which-is admitted fto thermixing tube, to pass through *tlie' thin annular effectively` subjected' 'to vthe action. of" the 'partitionmember 9, acontinuous substantially annular stream of gas is admitted to the burner to encircle' the steam jet and to commin le-vvith 'the air.; Which is admitted f to the vmixing'chamber at right 'angles tothe lflow of such thin "annular-stream oftincoming gas.. This method of introducingthel gas and air to the burner enables economic'l "operation of the burner because of the-low V fuel consumption.

What I claim asmy invention is: f v

l. A gas burner 'of the class describedrfor producing an induced draft comprising an elongated mlxing tube, a steam jet extend,- Y ing"through the rear end of said tube-and terminating a substantial distance from the frontend of the tube, a partition Wall disf posed in said tube to the rear of the dischar e end ofsaid jet, said partition being provlded at ,spaced intervals along its periphery. with groups of`saw tooth seri-ations', means for supplying gas to said tube to the l. rear of said partition member vto flovv 4in a serrations, and means for admitting air to said tube in advance of said partition member.

2. A gated cy inder closed at one end `a partition member dividing said 'cylinder into a gas receiving chamber and a mixing tube, a

gas *burnery comprising an elon plurality of air vents located circumferenti-l ally about said cylinder and slightly in adflow rom said gas chamber to said mixing tube in a substantially annular stream,V

Vance of said partition member,l a plurality of groups of annularly spaced openings 1n said artition member for permitting gas to means for injecting steam intov said mixing tube at a point in transverse alignment with said air vents and means for admitting gas to said gas chamber.

3. A gas burner of the class described for producin elongate mixing tube-,a steam jet extendl ing through the rear end of said tube and terminating a' substantial distance fromthe Y front end of the tube, a partition wall disposed in said tube to v the rearfof the discharge end of said jet, a plurality of an# nularly spaced air inlet openings -i-n said tube in advance'of'said partition member,

- said partition member being provided at intervalsalon its perlphery with groups of recesses, sai recesses being in longitudinal Ialinement with said annularly' spaced air inlet openings. y y

. 4. A gas burner of the class vdescribed comprising in combination, a mixing tube, a'pipe disposed within said tube and ada ted to discharge induction medium un er -pressure into saidtube adjacent the rear-end thereof, an air inlet opening inl said tube through which air is drawn -by the draft induced by said pipe, means'for admitting regulated quantities of combustible medium to the tubeahead of 'the'air inlet, a partition having a serrated peripher contacting the inner wall of said tube an adapted to direct the vcombustible mediumin a-thin ramilnated annular stream in an `unobstructed path across the air inlet opening, whereby the incoming air has to pass through said annular stream to get out of thetube. i

` LYMAN-C. HUFF.

an induced draft, comprisingan 

